This is part of the optimization pipeline, of which the legacy pass manager version is deprecated.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D144201

This patch adds a subset of PowerPC intrinsics - fmadd,
fmsub, fnmadd and fnmsub.

Differential Revision: https://reviews.llvm.org/D143951

This is similar to ADRP and matches GNU objdump:

GNU objdump:
```
0000000000200100 <_start>:
  200100:    adr    x0, 201000 <_start+0xf00>
```

llvm-objdump (before patch):
```
0000000000200100 <_start>:
  200100:    adr    x0, #3840
```

llvm-objdump (after patch):
```
0000000000200100 <_start>:
  200100:    adr    x0, 0x201000 <_start+0xf00>
```

Reviewed By: simon_tatham, peter.smith

Differential Revision: https://reviews.llvm.org/D144079

This should fix https://github.com/rust-lang/rust/issues/107681.

Return undefined to a noundef return value is undefined.

Example:

```
define noundef i32 @test_ret_noundef(i1 %cond) {
entry:
  br i1 %cond, label %bb1, label %bb2
bb1:
  br label %bb2
bb2:
  %r = phi i32 [ undef, %entry ], [ 1, %bb1 ]
  ret i32 %r
}
```

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D144319

issue #60799
issue #60801

Reviewed By: #libc, philnik

Spies: Mordante, paulkirth, libcxx-commits

Differential Revision: https://reviews.llvm.org/D144307

Depends on D142808

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D143383

Signed-off-by: eop Chen <eop.chen@sifive.com>

Avoids warnings in -asserts builds.

ASTContext.cpp:4098:1: error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type]
}
^

Addresses Github issue [[ https://github.com/llvm/llvm-project/issues/60317 | #60317 ]].

Reviewed By: klausler

Differential Revision: https://reviews.llvm.org/D143469

Introduce initial reader for TBDv5 which is in JSON. This captures all
the currently understood fields within the internal structure
`InterfaceFile`.
New fields will be followed up in future PRs.

Reviewed By: pete

Differential Revision: https://reviews.llvm.org/D144156

The only instruction of this format is VEX encoding

Allocation actions may run JIT'd code, which isn't permitted in -noexec mode.

Testcases that depend on actions running should be moved to the ORC runtime.

This caused false positives because the existing logic was not taking into account that pointers could have a tag in them.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D144305

This patch introduces a new type __externref_t that denotes a WebAssembly opaque
reference type. It also implements builtin __builtin_wasm_ref_null_extern(),
that returns a null value of __externref_t. This lays the ground work
for further builtins and reference types.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D122215

~TaskAsyncInfoWrapperTy() calls isDone. With synchronize inside isDone, we need to handle the error return from synchronize in the destructor.
The consumers of TaskAsyncInfoWrapperTy, targetDataMapper and targetKernel, both call AsyncInfo.synchronize() before exiting.
For this reason in ~TaskAsyncInfoWrapperTy(), calling synchronize() via isDone() is redundant.
This patch removes synchronize() call inside isDone() and makes it a lightweight check.
__tgt_target_nowait_query needs to call synchronize() before checking isDone().

Differential Revision: https://reviews.llvm.org/D144315

Also stop caring about typed pointers.

[flang] Adding fir::getSymbolAttrName attribute to the function corresponding to the main subprogram.
This is because the source name cannot be deconstructed from _QQmain

Differential revision: https://reviews.llvm.org/D144295

Experimental support for the zfa extension was recently added in https://reviews.llvm.org/D141984. A couple of the normal test changes and clang plumbing got missed in that change. This commit updates the usual suspects.

Differential Revision: https://reviews.llvm.org/D144288

Context: The `expression` command uses artificial variables to store the expression
result. This result variable is unconditionally kept around after the expression command
has completed. These variables are known as persistent results. These are the variables
`$0`, `$1`, etc, that are displayed when running `p` or `expression`.

This change allows users to control whether result variables are persisted, by
introducing a `--persistent-result` flag.

This change keeps the current default behavior, persistent results are created by
default. This change gives users the ability to opt-out by re-aliasing `p`. For example:

```
command unalias p
command alias p expression --persistent-result false --
```

For consistency, this flag is also adopted by `dwim-print`. Of note, if asked,
`dwim-print` will create a persistent result even for frame variables.

Differential Revision: https://reviews.llvm.org/D144230

Adopt `expression`'s options in `dwim-print`.

This is primarily added to support the `--language`/`-l` flag.

Differential Revision: https://reviews.llvm.org/D144114

This reverts commit b861b122.
This reverts commit 4be17641.

This patch wont build on some compilers on buildbot.

    [TextAPI] Implement TBDv5 Reader

    Introduce initial reader for TBDv5 which is in JSON. This captures all
    the currently understood fields within the internal structure
    `InterfaceFile`.

    New fields & follow up tests will be followed up in future PRs.

Reviewed By: pete

Differential Revision: https://reviews.llvm.org/D144156

Differential Revision: https://reviews.llvm.org/D144303

[Clang] Fix __VA_OPT__ implementation so that it treats the concatenation of a non-placemaker token and placemaker token as a non-placemaker token

Currently the implementation of __VA_OPT__ will treat the concatenation of a
non-placemaker token and placemaker token as a placemaker token which is not
correct. This will fix the implementation and treat the result as a
non-placemaker token.

This fixes: https://github.com/llvm/llvm-project/issues/60268

Differential Revision: https://reviews.llvm.org/D142604

Rather than using operator[] on getFeatureBits we can use
hasFeature to shorten the code.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D144300

This reverts commit 4eadd19c.

Doesn't work on macos. I'll investigate more

Since binary ID lookup makes CLI object arguments optional, it should be
possible to pass a list of source files without a binary. Unfortunately,
the current syntax will always interpret the first source file as a
binary. This change adds a `-sources` option to cause all later
positional arguments to be considered sources.

Reviewed By: gulfem

Differential Revision: https://reviews.llvm.org/D144207

Differential Revision: https://reviews.llvm.org/D144287